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Paul Prusakowski avatar image
Paul Prusakowski asked

Batteries bad?

screenshot-20230705-215958.pngImage Captionscreenshot-20230705-215950.pngI have 2 house Gel Duracell batteries in my RV. I am trying to keep one electronic device on 24/7. I have solar panels, and DC-DC charger.

I am concerned that my batteries are not doing as well as they could and many need a replacement soon.

I took pictures of past 7 days from Smart Solar, and Shunt, as well as current snapshot and history from Inverter.

Can anyone interpret these for me and let me know what you think about my battery situation ? Thanks a ton!


Paul


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battery charging
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screenshot-20230705-215958.png (222.3 KiB)
screenshot-20230705-215950.png (162.9 KiB)
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kevgermany avatar image kevgermany ♦♦ commented ·
It would be good to see the trend graph with volts and amps, the battery settings and the reason for the exclamation mark on the settings cog.

Looks as if the optional starter battery connection isn't there (but monitoring is on), or has failed.

What is worrying you in these screenshots?


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mvas avatar image
mvas answered ·

Can you explain ...

Min Battery Voltage = 4.51v

Max Battery Voltage = 14.78v

Those voltages seem extreme, especially for a Gel Battery.

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kevgermany avatar image kevgermany ♦♦ commented ·
Min battery is an odd one. Can often be zero, or some strange value from when the system started. AFIK, no way of resetting it without resetting all the values. I've ignored it on my system.

Max voltage could be down to kicking off an equalisation cycle. Or could be the settings on a charger at some point. Or a temporary spike (e.g. a high load which switches off suddenly).

In general neither of these values is often useful imho.


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